Semigroups 
/ edición Thomas Eric Hall 
 - New York, N.Y.   : Academic Press   , 1980 
 - x, 255 p. :  il.  
 - (Academic Press rapid manuscript reproduction) .
<br/><br/><label>ISBN: </label>0123194504 
<br/><br/><label>Subjects--Topical Terms: </label><br/> ALGEBRA<br/> SEMIGRUPOS
<br/><br/><label>Universal Decimal Class. No.: </label>512.53 S471s